Flue-beading tool.



No 793,574. PATENTED JUNE 27, 1905. J. W. FAESSLER & F. A. BALL.

FLUE BEADING TOOL.

APPLICATION FILED NOV. 7, 1904.

' lmln NITED STATES Patented June 27, 1905.

PATENT OFFICE.

JOHN W. FAESSLER, OF MOBERLY, MISSOURI, AND FREDERICK A. RALL,

OF TYLER, TEXAS.

FLUE-BEADING TOOL.

SPECIFICATION forming part of Letters Patent No. 793,574, dated June 27, 1905. Anplioation filed November 7, 1901. Serial No. 231,822.

To all whom it may concern:

Be it known that we, JOHN W. FAESSLER, a resident of Moberl y, Missouri, and FREDERICK A. RALL, a resident of Tyler, Texas, citizens of the United States, have invented certain new and useful Improvements in Flue-Beading Tools, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying d rawings, forming a part hereof.

Our invention relates to improvements in flue-beading tools; and it consists of the novel features herein shown, described, and claimed.

In the drawings, Figure 1 is a perspective of ailue-beading tool embodying the principles of our invention. Fig. 2 is a side elevation of the operating handle or shank. Fig. 3 is a top plan view of the' core or mandrel with the shank removed. Fig. 4 is a sectional detail on the line 4 4 of Fig. 3 and looking in the direction indicated by the arrow. Fig. 5 is a sectional detail illustrating the work performed by our flue-beading tool.

In a companion application we show, describe, and claim a flue-expander, and inthe work of making boilers said flue-expander is used to tighten the flue 5 into the flue-sheet 6 and put the shoulder 7 in the flue upbn the inside of the flue-sheet. After the flue-expander has been used the end of the flue projects outwardly beyond the flue-sheet, and our beading-tool is inserted into the flue and rotated to turn or spin the head 8 upon the outer end of the flue against the outer face of the flue-sheet, as shown in Fig. 5.

Referring to Figs. 1, 2, 3, and 4 in detail, the core or mandrel 9 is cylindrical in plan and adapted to fit closely within the end of the flue, there being an eccentric spinning-shoulder 10 near the upper end of the mandrel and there being a longitudinal slot 11 extending from the upper end of the mandrel at the side opposite the thickest part of the shoulder 10. The beading-tool proper comprises the bar 12, pivotally mounted in the slot 11 by the pin 13, extending through the lower end of the mandrel and through the bar, there being acurved spinning-face 14 near the upper end of said bar, extending outwardly substantially in a horizontal plane with the shoulder 10, and there beinga rounded bearing-surface 15 at the upper end and near the side of the bar. The operating-shank comprises the head 16, the chuck-stem 17 extending upwardly from the head, the shank 18 extending downwardly from the head, and the wedge 19 extending downwardly from the shank, there being a rounded surface 20 at the lower side of the shank to engage the rounded surface 15 of the bar 12.

The wedge 19 fits in the slot 11 behind the bar 12. The shank 18 fits in the upper end of the slot above the rounded surface 15, and the stem 17 fits in the chuck or operating device. When the wedge 19 is driven downwardly, the bar 12 is forced outwardly to expand and tighten the flue in the flue-sheet, and the rounded surface 20 engages the rounded surface 15 and limits the downward motion of the wedge. The spinning-face 14 is slightly below the level of the shoulder 10, and when the mandrel is driven or forced downwardly into the flue the spinning-face 14 will engage the edge of the end of the flue, and as the mandrel is rotated the material of the flue will be pressed outwardly and turned over to form the bead 8, and in order to prevent the spinning-face 14 from working too fast and splitting the end. of the flue the shoulder 10 is provided to limit the downward motion of the mandrel. The eccentric relation of the shoulder 10 to the beading-tool proper provides means for gradually turning the metal over behind the beading-tool, and the result is a perfect bead.

We claim- 1. In a flue-beading tool: the mandrel 9; the eccentric spinning-shoulder 10 upon the mandrel; there being a slot 11 opposite the thickest part of the shoulder; the bar 12 pivotally mounted in the slot 11; and having the curved spinning-face 14 at the lower side of its upper end; and having the rounded bearing-surface 15 at the upper side of its upper end; the head 16; the shank 18 extending downwardly from the head into the upper end of the mandrel; and the wedge 19 extending downwardly from the shank and having a rounded surface 20 to engage the rounded surface 15.

2. In a flue-beading tool: a cylindrical mandrel having a vertical slot at one side; a bar pivotally mounted in the slot; and having a curved spinning-face at the lower side of its upper end: and having a rounded bearingsurface at the upper side of its upper end; a shank extending into the slot of the mandrel behind the pivoted bar and a wedge extend- 

